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. 1997 Jan;9(1):133-42.
doi: 10.1162/jocn.1997.9.1.133.

A locus in human extrastriate cortex for visual shape analysis

N Kanwisher  1 , R P Woods, M Iacoboni, J C Mazziotta
Affiliations

A locus in human extrastriate cortex for visual shape analysis

N Kanwisher et al. J Cogn Neurosci. 1997 Jan.

Abstract

Positron emission tomography (PET) was used to locate an area in human extrastriate cortex that subserves a specific component process of visual object recognition. Regional blood flow increased in a bilateral extrastriate area on the inferolateral surface of the brain near the border between the occipital and temporal lobes (and a smaller area in the right fusiform gyms) when subjects viewed line drawings of 3-dimensional objects compared to viewing scrambled drawings with no clear shape interpretation. Responses were Seen for both novel and familiar objects, implicating this area in the bottom-up (i.e., memory-independent) analysis of visual shape.

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